Sorry I forgot that:
Glest 3.2.2 (vanilla)
Tile set : Forrest
Map: Four rivers
Player 1 : Human, tech, Team 1
Player 2 : CPU, tech, Team 1
Player 3 : CPU, magic, Team 2
Player 4 : CPU, magic, Team 2
Techtree: Magitech
I have not tried to reproduce that yet. But my pal definetly had enough ressources to build something.